Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Creating a Python Linked List Step by Step
Build a stack using a Python linked list, understand the logic, memory flow, and interview-ready reasoning behind it.
Nathan Rosidi -
How Does Python For Loop Range Function Work?
Learn how to use Python’s for loops and range() together to automate repetitive tasks, clean data, and tackle real-world coding problems.Nathan Rosidi -
Data Science Therapy: I Automated My Job… Excel Ruined Everything!
So you thought you’d lead technological transformation and use innovative technology? That’s a good one! Bow down to the one and only king: Excel.Nathan Rosidi -
How to Make a Boxplot with Matplotlib
Drawing a boxplot in Matplotlib is a valuable skill for visualizing data distribution. You’ll get all the fundamentals and a real-world example in this article.Nathan Rosidi -
How to Use Python’s Sleep Function
Learning how the Python sleep function works and how to apply it for timing control, automation, and data processing tasksNathan Rosidi -
Best Practices for R Continuous Integration
Implementing Continuous Integration in R: Automate Tests, Detect Errors Early, and Keep Your Analysis ConsistentNathan Rosidi -
How to Remove an Element from a List in Python
Different Ways to Remove Items from Python Lists with Practical ExamplesNathan Rosidi -
PCA Analysis in Python for Beginners
A Practical Walkthrough of Principal Component Analysis with Real-World Examples in PythonNathan Rosidi -
Exploring NumPy where() in Python for Conditional Operations
Master NumPy where() for smarter data filtering, conditional replacements, and interview-ready logic with clean, efficient Python code.Nathan Rosidi -
How to Implement Delays Using Python WAIT Function
A Complete Guide to Implementing Waits in Python Using Sleep, Asyncio, Threading, and SubprocessesNathan Rosidi -
Implementing a Logit Model in R Effectively
How to build and interpret a logit model in R to predict customer churn: data preparation, modeling, and evaluationNathan Rosidi -
Case Statement in Python: Best Practices and Alternatives
Mastering case statement in Python with best practices, alternatives, and real-life applicationsNathan Rosidi -